842  
CDCA42 TJSJ 210438  
CLISJU  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE SAN JUAN PR  
1238 AM AST THU JAN 21 2021  
   
...............................
 
 
   
..THE SAN JUAN AREA/PR CLIMATE SUMMARY FOR JANUARY 20 2021
 
 
CLIMATE NORMAL PERIOD: 1981 TO 2010  
CLIMATE RECORD PERIOD: 1898 TO 2021  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 84 4:08 PM 89 1966 83 1 84  
MINIMUM 74 5:15 AM 64 2000 72 2 73  
AVERAGE 79 78 1 79  
 
PRECIPITATION (IN)  
YESTERDAY 0.13 2.63 1977 0.12 0.01 0.41  
MONTH TO DATE 0.78 2.65 -1.87 4.81  
SINCE DEC 1 5.46 7.67 -2.21 10.59  
SINCE JAN 1 0.78 2.65 -1.87 4.81  
 
DEGREE DAYS  
HEATING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE DEC 1 0 0 0 0  
SINCE JUL 1 0 0 0 0  
 
COOLING  
YESTERDAY 14 12 2 14  
MONTH TO DATE 265 258 7 292  
SINCE DEC 1 706 681 25 811  
SINCE JAN 1 265 258 7 292    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 23 HIGHEST WIND DIRECTION E (70)  
HIGHEST GUST SPEED 28 HIGHEST GUST DIRECTION NE (50)  
AVERAGE WIND SPEED 9.3  
 
SKY COVER  
AVERAGE SKY COVER 0.4  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
RAIN  
FOG  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 94  
LOWEST 65  
AVERAGE 80  
   
......................................................
 
 
THE SAN JUAN AREA/PR CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 83 91 1995  
MINIMUM TEMPERATURE (F) 72 62 1956  
 
SUNRISE AND SUNSET  
JANUARY 21 2021.......SUNRISE 6:59 AM AST SUNSET 6:12 PM AST  
JANUARY 22 2021.......SUNRISE 6:59 AM AST SUNSET 6:12 PM AST  
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 

 
 
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